问题 问答题

某高速公路特大桥为变截面预应力混凝土连续刚构桥,其桥跨布置为70m+4×120m+70m。主梁采用箱形截面,墩身为空心墩,墩高50~75m。桥墩采用群桩基础,平均桩长约60m(示意图如图1所示)。

施工单位为本桥配置了以下主要施工机械和设备:反循环钻机、混凝土高压泵、混凝土搅拌站、塔吊、载人电梯、悬臂式掘进机、架桥机、预应力张拉成套设备、爬模设备、钢模板、钢护筒、挂篮设备。

3号桥墩在施工到40m高度时,作业人员为了方便施工,自己拆除了部分安全防护设施。另有作业人员携带加工好的部分箍筋乘电梯到墩顶施工。

[问题]

按高处作业的分级要求,该桥2号桥墩施工属于哪一级患有哪些疾病的人员不适合在本桥墩作业该桥墩的作业人员应配备哪些个人安全防护设施

答案

参考答案:

(1)属于高处作业特级。(2)高血压、心脏病、精神病、恐高症、癫痫病、严重贫血病、严重关节炎等。(3)系安全带、戴安全帽、穿软底鞋。

阅读理解

One day while walking along the bank of a river, a rabbit couple(夫妇) saw a wounded(受伤的) ant lying unconsciously(没有直觉地) on the grass. The rabbit couple gently put the ant on the leaf(叶子) of a nearby plant. She soon recovered and saw the rabbit couple sitting beside her.

The ant remembered that she had found herself under the foot of a cat by chance and fainted(晕倒). She asked how she reached the leaf top. The rabbit couple told her what had happened. The ant thanked them and said she would help them when they needed help.

The rabbit couple went further up the river to enjoy the bright sun. They had been there many times and would spend many hours playing and relaxing in the sun.

One fine day, the couple were again on their way to the river while the ant was playing on the leaf of a tree. She saw the rabbit couple walking towards the river. A few hours later she saw the rabbit couple sleeping peacefully on the soft grass by the river. Suddenly she saw a lion moving towards the grass where the rabbit couple were sleeping. The loin saw the rabbit sleeping, and started walking quietly to attack them.

Realizing the hazard getting close to the rabbits, the ant jumped from the leaf to the lion’s shoulder and bit(咬) the lion’s back. The lion cried out in pain, waking the rabbit couple. The rabbits ran away quickly and the ant jumped off the lion’s back into the grass.

A white pigeon(鸽子) who watched this event cheered at the courage(勇气) of the ant and told the whole story to the rabbits. The rabbit couple were moved and thanked the ant. They became best friends.

小题1:From the first three paragraphs, we can learn that _____.

A.the rabbit couple put the ant on the leaf of a plant to hide her

B.the ant was wounded after fighting with a cat

C.the rabbit couple and the ant knew each other very well before

D.the rabbit couple often went to the river小题2:According to the passage, which of the following is TRUE?

A.The ant was hurt by the lion.

B.The ant was small but clever.

C.The white pigeon was as brave as the ant.

D.The lion wanted to play a joke on the rabbit couple.小题3:According to the passage, which is the correct order of the following events?

a.      The ant jumped into the grass to hide.

b.      The ant bit the lion’s back.

c.      The lion moved towards the rabbit couple.

d.      The rabbit couple saved the ant.

e.      The ant saw the rabbit couple sleeping on the grass.

A.d,c,e,a,b

B.d,e,c,b,a

C.e,c,b,a,d

D.c,d,e,b,a小题4:The underlined word “hazard” in the fifth paragraph probably means “_____”.

A.reality

B.warning

C.experience

D.danger

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